PerfBlock is a minimal performance stats display. It shows memory usage,
latency, fps, and memory/sec. Its background and border colors, window scale,
and displayed information can be customized.

Release Changelog:
6:
* Add options to show/hide individual pieces of information in the PerfBlock.
* Add a configuration dialog in OptionHouse.
* Remove configuration slash commands, instead replacing them with /pb config.
* Add database profile options to slash commands, and ensure PerfBlock
responds to profile changes.
* Add position reset slash command (/pb resetpos).
* Switch the default profile to "Global", so by default settings will be
common between characters. You can switch back to character specific with
/pb profile setchar.

5:
* Switch from lock/unlock to simply allowing movement while alt is held down.
* Update to current LegoBlock library.
* Fix cancel button behavior in the color pickers.
* Add memory/sec display.
* Switch to multiline format.

4:
* Include the correct version of the Dongle library.

3:
* Make the default bg and border colors a bit more sane.

2:
* Improve the readability of the text.

1:
* Initial version.

急云注：显示系统性能信息的插件 也没有多大必要汉化 直接可用